374Water Inc. Debt Disclosure

Note 7 – Debt Obligations

Note Payable

During the year ended December 31, 2025, we purchased approximately $48,200 of equipment with a note payable. The note bears interest at 10.75% and requires fixed payments of principal and interest of $1,042 for sixty months. At December 31, 2025, the outstanding principal balance was $43,149.

At December 31, 2025, future principal payments on the note payable for the years ending December 31, will be as follows: 

Secured Promissory Note

On September 30, 2025, the Company executed a $600,000 short-term secured promissory note (the “Short-Term Note”). The Short-Term Note requires repayment of $630,000 on the maturity date of January 2, 2026. The Short- Term Note is secured by certain outstanding receivables of the Company. The lender of the Short-Term Note also received a warrant to purchase 10,000 shares of common stock at $11.25 for a period of four years. We computed the fair value of the warrant using a Black-Scholes option pricing model and the following inputs: stock price $2.90, expected term of 4 years, volatility 96.00%, risk-free rate of 3.68%, and dividend rate of 0.00%. The value of the warrant upon issuance was not significant. The outstanding principal balance and the accrued interest of $630,000 has been presented within current liabilities on the accompanying consolidated balance sheets. The Short-Term note was repaid in its entirety upon maturity. 

Financing Liability

During the year ended December 31, 2025, we entered into a financing agreement to finance $265,505 of insurance premiums due on various policies. The financed amount is due in fixed monthly payments of $19,808 for a period of eleven months and bear interest at 9.85%. The balance of $159,342 remaining on this financing liability has been

presented within current liabilities on the accompanying consolidated balance sheets.